Cellular Processes and Functions

The video tutorial covers key biological processes including photosynthesis, cellular respiration, and the structure and function of the cell membrane. It explains how stomata function in plants, the role of the cell membrane in regulating cell activity, and the steps involved in cellular respiration. The session concludes with a preview of upcoming topics on DNA and genetics.

What is the primary function of stomata in plant leaves?

• To absorb water from the atmosphere

• To exchange gases necessary for photosynthesis

• To protect the leaf from environmental damage

• To produce glucose directly

What topics were introduced in the session?

• None of the above

• Mitosis and meiosis exclusively

• Only photosynthesis and cellular respiration

• Cell energy, photosynthesis, cellular respiration, mitosis, and meiosis

Which of the following is NOT a reactant in photosynthesis?

• Water

• Light energy

• Oxygen

• Carbon dioxide

What is the primary role of the sodium-potassium pump in cell membranes?

• To synthesize proteins

• To store genetic information

• To produce glucose

• To act as a carrier protein using energy

Which of the following is a building block of proteins?

• Amino acids

• Fatty acids

• Monosaccharides

• Nucleotides

What is the primary function of the cell membrane?

• To synthesize DNA

• To defend against foreign particles

• To produce energy

• To store water

What is the role of oxygen in cellular respiration?

• To act as an acceptor for electrons and hydrogen

• To combine with carbon to form CO2

• To release energy in the form of ATP

• To combine with lactate to form pyruvate

Which of the following is a reactant in cellular respiration?

• Oxygen

• Carbon dioxide

• Sunlight

• Water

Where does photosynthesis primarily occur?

• In the cytoplasm

• In the chloroplasts

• In the nucleus

• In the mitochondria

Which process occurs in both plants and animals?

• Photosynthesis

• Fermentation

• None of the above

• Cellular respiration